EuroGeo 6 - 2016 Ljubljana Slovenia Characteristics of six PVC-P geomembranes installed in reservoirs in Spanish Mediterranean Basin F. A. Zapata Raboso, F. J. Sánchez Romero, J-P. Giroud, J. B. Torregrosa Soler, M. Blanco, M. Pérez Sánchez, M. Redón Santafé, R. Solera Access